You might be thinking "Hey, that's only 16 USB ports!" Never fear, gentle reader—there are another four USB headers on the board. They're for connecting to chassis-mounted ports. Portwell Headers for the other four USB ports are to the right of the heat sink and just to the left of the low-profile PCIe riser. Portwell If you still have questions, we're not sure a bottom view of the board will answer them—but here it is, just in case. Portwell
Industrial PC company Portwell is offering an unusual server motherboard. The PEB-9783G2AR is a FlexATX board designed for use in low-profile chassis, supporting Intel Comet Lake-S CPUs and up to 128GiB of DDR4 ECC RAM. This, and the rest of the board's specs, are pretty normal—but then there's the 20 USB 3.2 type-A ports.
Yes, that's right, 20 USB ports. Sixteen of them are mounted on the motherboard itself and rear-facing; the other four are headers available for cable connections to chassis-mounted ports. Tom's Hardware covered this board and speculated that the massive array of USB ports would be useful to cryptocurrency miners for use with external GPUs (though some commenters disagreed).
The cryptocurrency angle is interesting, but it's probably a bit off the mark—Portwell's own Read More – Source
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